Smokingisabadhabitthatdoesharmtosmokerandothers.Manykindsofdiseasesandcancersarecausedbysmoking,suchastrachitis,lungcancerandmanyotherdiseases.Recentyears,therearetensofthousandsofpeopledyingofsmoking.Buttherestillaremanypeopleenjoyingsmoking,becausetheythinksmokingisakindoffashionandsmokingissocool,especiallyamongteenagers.Inaddition,smokingdoesharmtoothersaswell.Secondhandsmokinghasbeenrecognizedharmfultootherpeople.Evenworse,itmaycausemoredamages.Therefore,peopleshouldrememberthatsmokingisharmfultoothersandthosepeoplewhosmokesshouldgiveupsmokingassoonaspossible.